I'm ready to replace my inoperative Mode C xponder with a new Mode S, so I've been wading through info on transponders and ADS-B capabilities and limitations. This is what I think I know - please give me a sanity check before I place an order for a Trig TT21 or TT22 (both transmit/receive on 1090 MHz). I fly day VFR.
...The Mode S transponder signal satisfies FAA requirements for transponder use regardless of the status of the ADS-B network deployment.
...Connecting my Garmin 496 to the Trig will allow a more accurate fix on my position (but the 496 doesn't provide the position integrity required for IFR).
...Sending the GPS-enhanced signal MAY allow me to receive TIS-B traffic info and display it on the 496 (not sure about this one).
...Traffic info is transmitted by the ground system on both 1090MHz and 978MHz.
...Weather info is transmitted only on 978MHz, so I won't receive any weather with the Trig.
...If I decide later (after the ADS-B network is built out) to utilize the weather info (FIS-B), I will need a universal access (978MHz) receiver, and will somehow have to signal that I can receive on 978MHz.
...I read somewhere that the FAA may require the higher power transponder (i.e. TT22) for all planes by the 2020 deadline. Any truth to this?
Thanks for your input ... Joe
...The Mode S transponder signal satisfies FAA requirements for transponder use regardless of the status of the ADS-B network deployment.
...Connecting my Garmin 496 to the Trig will allow a more accurate fix on my position (but the 496 doesn't provide the position integrity required for IFR).
...Sending the GPS-enhanced signal MAY allow me to receive TIS-B traffic info and display it on the 496 (not sure about this one).
...Traffic info is transmitted by the ground system on both 1090MHz and 978MHz.
...Weather info is transmitted only on 978MHz, so I won't receive any weather with the Trig.
...If I decide later (after the ADS-B network is built out) to utilize the weather info (FIS-B), I will need a universal access (978MHz) receiver, and will somehow have to signal that I can receive on 978MHz.
...I read somewhere that the FAA may require the higher power transponder (i.e. TT22) for all planes by the 2020 deadline. Any truth to this?
Thanks for your input ... Joe